Double-ended receptacle.



11. R. SARGENT & F. 0. DE REAMER.

DOUBLE ENDED REGEPTAGLE.

APPLICATION FILED JULY 9, 1907. 944,347. ["1 1.

Patented Dec.28, 1909.

WlTNESSES. Y INVENTURS Wa HUWARD RBARGENT y W FANK B-EREAMER "UNITED srnrns' PATENT ormos.

HOWARD B. SABGE'HT AND FRANK DE BEAMER, 0F SCH-ENEC'DAIDY, NEW YORK, AS- SIGNOBS I0. GENEML COMPANY, A COKPOBATIONOI NEW YORK.

DOUBLE-ENDED RECEPTAGLE.

Application filed July 9, 1907. Serial No. 382,891.

To all whom it may concern:

Be it known that we, HOWARD R. SARGENT and FRANK C. DE REAMER, citizens of the.

United States, residing at Schenectady, county of Schenectady, State of New 'Yor have invented certain new and useful Improvements v in Double-Ended Receptacles, of which the following is a specification.

This invention'relates to electric light' and its object is to provide a recepta e capable of holding two incandescent 1am s. Such a device is not broadly new, but e one which formsthe subject-matter of the 7 from which a hole 8 extends a present application contains features of nov-. elty which render it of practical and commercial value.

The. body of the receptacle, is made 0 molded insulation, such as porcelain, and one object of our invention is to enable it. to be formed without any undercut "portions, so that it can be pressed into shape by a solid die having no movable parts.

Another object of our invention is to reduce the number of parts to a minimum, and simplif their construction, so that their cost of pro uction will be low, and they can be easily and quickly assembled;

In the accompanying drawing, Figure 1 is a top plan view of an improved receptacle, with the cover removed, and the central.

post shown in section; Fig. 2 is a bottom plan view of. the cover; Fig. 3 is an end elevation of the-complete recc tacle; Fig. 4 is a lon itudinal section on the line 4-4, Fig. 3; ig. 5 is a erspective view of the 100 y;

and Fig. 6 s owe the line-terminal contacts. I

The-body 1 and the cover 2 meet on a plane passing diametrically through cylin-.

drical tubular projections 3, formmg. sockets which extend from opposite sides of the body and cover, with their axes preferably in line. Rising from the body, midway between these tubular projections or sockets is a post 4 having flat faces at right angles to the axis of said projections. The edges of said post are grooved at 5, and in its top is a deep notch .6 arallel with the axis of the tubular projections or sockets. In the bottom of the body is a deep transverse groove into the base of the post. As .the width 0 this hole equals the thickness of the post it produces a transverse openin 9 through the 0st just above the bottom the sockets. X screwthreaded sheet-metal shell contact 10 is housed -in each of the sockets, and is suitably fastened to and supported by the post 4,

preferably as follows: Each shell has a flange 11 resting against said post. Bean ing on this flange in one of said shells is a bent metal punching 12 containing tapped holes 13 to receive "the ends of screws 14, which pass throu 11 holes in the flange of the other shell, an through the notch 6 and opening 9 in the pxost. By means of these two screws both s ells are firml fastened to the post in positions substantia ly concentric with the sockets.

The punching .12 is provided with a flange 15 containing a binding screw 16 b means. of which one of the .line terminals 1 is connected with both of the shell contacts; one through the punching itself, and the other through the punching and the screws 14.

The other line terminal 18 is connected by a binding-screw 19 with a U-shaped punch ng 20, whose arms extend through wide slots in the shells to a central position therein. These arms are insulated from the shells by disks 21 of mica or the like and may be supported by pads 22 of insulation placed between the post and the centers of the mica disks. The punching 20 has a foot 23 to receive a fastening screw passing up into it through a hole in the body 1.

Ducts 2 1 are molded through the body to admit the line terminals to recesses 25 on each side of the post, where the binding screws 16 and 19 are located, and whoseends enter the grooves 5. Registering holes 26 are molded in the cover and the body to receive the fastening screws 27.

W'hen incandescent lamps are screwed into the sockets, they are connected in multiple. The receptacle is, therefore, a simple and convenient appliance for use in connection with any system of electric lighting, but especially display systems for window lighting, theater lighting, and other decorative purposes. It will be noticed that there are no under-cut portions on either body or cover, so that both will draw readily from a solid mold or die. The parts are few in number, simple in construction, and easy to assemble.

What we claim as new, and desire to sepost on said body between said sockets, shell cure by Letters Patent of the United States, 1s-- 1. A double-ended receptacle for electric lamps, comprising a body and cover having semi-tubular pro ections on opposite sides forming sockets, said body and cover meeting on a plane which diametrically intersects said sockets.

2. A double-ended receptacle for electric lamps, comprising a body having semi-tu bular projections on opposite sides, and a post midway between said projections.

3. A double-ended receptacle for electric lamps, comprising a body. having semi-tubular projections on opposite sides, and a post midway between said projections having flat opposite faces transverse to the axis of said rojections.

4. A ouble-ended receptacle "for electric lamps, comprising a body having semi-tubular projections on opposite sides, a post midway between said projections having flat opposite transverse faces, and openings at the top and bottom parallel with the axis of said projections.

5. A double-ended receptacle for electric lamps, comprising a body having semi-tubular projections on opposite sides, and a post midway between said projections havlng a deep notch in its upper end and an opening in its base.

6. A double-ended receptacle for electric lamps, comprising a body having semi-tubular projections on opposite sides, and a post midway between sald projections havmg a notch in its upper end, said body having a hole extending through its, bottom into said post, of a widthequal to the thickness of said post.

7. A double-ended receptacle for electric lamps, comprising a body and cover having semi-tubular pro ections forming sockets, a

0st on said body between said sockets, andamp contacts supported on said post.

8. A double-ended receptacle for electric lamps, comprising a body and cover having semi-tubular projections forming sockets, a

- post on saidbody between said sockets,

flanged shell contacts on opposite sides of said post, and screws passing through said post and the flanges of said contacts.

9. A double-ended receptacle for electric lamps, comprising abody and cover having semi-tubular pro ections forming sockets, a

post on said body between said sockets, flanged shell contacts on op osite sides of said post, a bent punching caring on the flange of one shell and provided with a line-terminal binding-post, and screws pass ing through the flanges of said shells, the post and said punching.

10. A double-ended receptacle for electric lamps, comprising a body and cover having semi-tubular pro ections forming sockets, a

contacts secured to opposite sides of said post, and a U-shaped center contact having arms extending on opposite sides of said 1 11. A lamp socket comprising an insulating base member formed with an enlarger-l supporting portion, a plurality of threaded lamp-receiving shells secured to said base with their axes in a common plane, centercontacts correspondlng to said shells, and

13. A lamp socket comprising an insulating base having an enlarged portion for securing the device to a support, a pair-of threaded shells carried by saidbase and an ranged end to end, means extending through said base for securing said shells in place and electrically connecting them together, center terminals corresponding to said.

threaded shells, and suitable binding termio nals, said base having openingsfor the passage of conductors to said termmals.

14:. A lamp socket comprising a base of insulating material having a portion thereof expanded and perforated for the reception of securing means,'a plurality of threaded lamp-receiving sockets carried by said base with their axes disposed radially in a common plane, means extending through said base for securing said sockets in place and for electrically connecting the same together, center contacts corresponding to said sockets, and binding terminals carried by said base, said base having openings for the passage of conductors to said terminals. 15. A lamp socket comprising an insulating base, a pair of threaded lamp-receiving shells secured to said base on opposite sides thereof, a center contact on each side of said base, said base having an enlarged portion for securing the device to a support, said enlarged portion having openings for the reception of securing means, and binding posts carried by said base.

16. A lamp socket comprising a base i.

formed of insulating material and having an integral portion of reduced cross-section, center contacts on opposlte sides of said reduced portion, threaded contact shells .cor-- responding to said center contacts and se cured to said reduced portion, and binding 0 and an terminals, said base havin Lo m'ngs extending therethrongh for Elie Pgassage of conductors to. said bm terminals.

17 A lamp socket comprising an insulating base member formed with a supporting rtion, a plurality of threaded lamp-receiv-.

mg contact shells secured to said base with their axes ,i a common plane, center contacts col'lrrseslfondmg' to said contact shells, ating cover member cooperating with said base member to inelose said contacts.

18. A lamp socket comprising an insulating base member tormed with a supporting 5 rtion, a lurality of threaded lamp-receiv- P 1? mg contact shells sec their axes in a common plane, center contacts corresponding to said contact shells, binding terminals connect-ed respectively to said center and shell contacts, and an insulating cover member .said base member to inclose said contacts, one of said insulating members being apertured for the passage of conductors to said binding terminals. k

In witness whereof, we have hereunto set our hands this 6th day of July, 1907.

HOWARD R. SARGENT. FRANK C. DE REAMER. Witnesses:

" Bnmmm B. HULL,

Y to said base with HELEN Oman.

cooperating with 

